Wherever you're going, do it with confidence in the ultralight and waterproof Alto Light HS pants. Designed to keep you covered, whatever the weather, these high-performance hardshells deliver uncompromised protection from the elements in a minimalistic design. Our 2. 5L DRYtechnology(TM) laminate made with recycled Polyester and solution dyed fabric is completely wind- and waterproof. With full-length side zippers for quick changes on the fly, the super-packable Alto Light is sure to be a staple for your outdoor and everyday packs.